PH control of leachable mercury in fluorescent lamps

Details PH control of leachable mercury in fluorescent lamps PH control of leachable mercury in fluorescent lamps

1996-11-29

1998-04-07

O'Shea, Sandra L.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313565, 313637, 313639, H01J 6100

Patent

active

057368139

ABSTRACT:
The formation of leachable mercury upon disposal or during TCLP testing of mercury vapor discharge lamps is substantially prevented by incorporation of a pH control agent in the lamp structure or in the test solution to provide a pH of about 5.5 to about 6.5.

REFERENCES:
patent: 4806824 (1989-02-01), Paynter et al.
patent: 5198722 (1993-03-01), Brabham et al.
patent: 5229686 (1993-07-01), Fowler et al.
patent: 5229687 (1993-07-01), Fowler et al.

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